package com.ys.gulimall.controller;

import com.ys.gulimall.interceptor.CartInterceptor;
import com.ys.gulimall.service.CartService;
import com.ys.gulimall.vo.CartItemVo;
import com.ys.gulimall.vo.CartVo;
import com.ys.gulimall.vo.UserInfoTo;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.ExecutionException;

/**
 * @Description:
 * @author： yeswater
 * @create： 2024/5/17
 */

@Controller
public class CartController {
	
	@Resource
	private CartService cartService;
	
	/**
	 * 浏览器有一个cookie；user-key:标识用户身份，一个月后过期
	 * 如果第一次使用jd购物车功能，都会给一个临时的用户身份
	 * 浏览器保存，每次访问都会带上有这个cookies
	 *
	 * 登录  session有
	 * 没登录，按照cookie里面带来的user-key来做
	 * 第一次，如果没有临时用户，帮忙创建一个临时用户
	 */
	@GetMapping("/cart.html")
	public String cartListPage(Model model) throws ExecutionException, InterruptedException{
		
		CartVo cart = cartService.getCart();
		model.addAttribute("cart",cart);
		return "cartList";
	}
	/**
	 * 添加商品到购物车
	 * @return
	 */
	@GetMapping("/addToCart")
	public String addToCart(@RequestParam("skuId") Long skuId,
	                        @RequestParam("num") Integer num,
	                        RedirectAttributes RedirectAttributes) throws ExecutionException, InterruptedException {
		CartItemVo cartItem = cartService.addToCart(skuId,num);
		RedirectAttributes.addAttribute("skuId", skuId);
		return "redirect:http://cart.gulimall.com/addToCartSuccess.html";
	}
	
	@GetMapping("/addToCartSuccess.html")
	public String addToCartSuccess(@RequestParam("skuId") Long skuId, Model model) {
		CartItemVo cartItemVo = cartService.getCartItem(skuId);
		model.addAttribute("cartItem", cartItemVo);
		return "success";
	}
	/**
	 * 商品是否选中
	 * @param skuId
	 * @param checked
	 */
	@GetMapping(value = "/checkItem")
	public String checkItem(@RequestParam(value = "skuId") Long skuId,
	                        @RequestParam(value = "checked") Integer checked) {
		
		cartService.checkItem(skuId,checked);
		
		return "redirect:http://cart.gulimall.com/cart.html";
		
	}
	
	
	/**
	 * 改变商品数量
	 * @param skuId
	 * @param num
	 */
	@GetMapping(value = "/countItem")
	public String countItem(@RequestParam(value = "skuId") Long skuId,
	                        @RequestParam(value = "num") Integer num) {
		
		cartService.changeItemCount(skuId,num);
		
		return "redirect:http://cart.gulimall.com/cart.html";
	}
	
	/**
	 * 删除商品信息
	 * @param skuId
	 */
	@GetMapping(value = "/deleteItem")
	public String deleteItem(@RequestParam("skuId") Integer skuId) {
		
		cartService.deleteIdCartInfo(skuId);
		
		return "redirect:http://cart.gulimall.com/cart.html";
		
	}
	
	@GetMapping("/currentUserCartItems")
	@ResponseBody
	public List<CartItemVo> getCurrentUserCartItems(){
		return cartService.getUserCartItems();
	}
	
	
}
